My live rocks had red alge on which I was told was good? But a day later they are quickly being covered in green alge it's quite fluffy. Should i do any thing tank has been running for just over a day.

Do you have any pictures of the algae? If so, they can help us identify the kind of algae you are talking about. Basically there are two kinds of algae. The good kind is called macroalgae, which can absorb things that you don't want in your aquarium like nitrates. On the other hand, there is annoying types of algae called microalgae. Microalgae is normally invasive and needs to be kept in check. Microalgae can occur due to poor water conditions, overfeeding etc.

My live rocks had red alge on which I was told was good? But a day later they are quickly being covered in green alge it's quite fluffy. Should i do any thing tank has been running for just over a day.

There are good types of red algae and there are bad types. An example of a bad type of algae would be Cyanobacteria, which looks like red slime.

The fluffy algae that you are talking about could be hair algae, which is a nuisance.

At this point, I am not sure that I would do anything since the tank was just setup.

Looks like in some weird way, you do have...something...alive in there. . Welcome to the wonderful world of extreme patience and, at times, utter frustration! The tank looks great! Your well on your way!